
Pin
Name
IN/OUT
Notes
1
GND
2
SB
I/O
Charger coding and
charger control.
3
POWER
I
Charging Current
4
FBatt+
O
Power supply for the
accessories.
5
TX
O
Serial interface
6
RX
I
Serial interface
7
ZUB_CLK
I/O
Clock line for
accessory bus
Use as DTC In data
operation
8
ZUB_DATA I/O
Data line for
accessory bus.
Use as CTS in data
operation
9
GND_MIC
For external
microphone
10
HF_MIC
I
External microphone
11
AUDO
O
Trigger for external
loudspeaker
12
GNDA
For external
loudspeaker